Reasons why vending machines are not cooling

The sound produced by the vending machine, the preliminary judgment, and the specific situation should be judged by combining the pressure and the state of the filter. After listening to these sounds, turn off the machine. After about 15 to 20 minutes, turn on the process tube. If the ice is blocked, wait for the ice to melt before turning on the tube. When opening the tube, the cutter only cuts half of it. Take a good plastic bag to wrap the cutter and the craft tube, and then remove it by hand after wrapping. At this time, you can know whether the pressure in the system is negative pressure, zero pressure, positive pressure with a small amount of refrigerant, or positive pressure with a large amount of refrigerant. If at first listening to the sound, the vending machine has a hissing sound and a little refrigerant, and after a week or even a month, there is still refrigerant, but there is no cooling, and there is a sound of the compressor running, It is very dull, and then there is no other sound, then it can be confirmed that it is an ice block. In the case of ice blockage, we can shut down to melt the ice and then be able to cool again. If there is no ice leakage in our vending machine, but this phenomenon occurs, in this case, it may be refrigeration or temperature leakage. If the machine makes a grunting sound, then we can check to see if there are traces of water flowing through the door of the vending machine, and whether the middle door cabinet is rusted. . At this time, if you can find the door tube, you can throw the door tube directly. If you can't find it, you need an external condenser. The door frame is rusted, and most of the refrigerated outlet pipes are frozen. If there is an open back, the drainage pipe needs to be dealt with. Lift a little to the position of the back panel, dig out the foam that has entered the water, and then stick the leaks. The door frame should be scraped clean and glued. If there is water in the filter of our vending machine, we need to open the back or replace the tube. If there is no water in the zero-pressure filter, it is usually because the door pipe is very rusted and the perforation is large. We also only need to remove the door pipe or the external condenser.

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